True, in the short to medium term Intel has no shortage of orders and they also have a huge cash reserve. They are in no danger from a business point of view. That said, there have been some quite big shifts recently - AMD getting their act together is one thing, however with other large firms now fielding performance equal ARM processor designs (specifically talking about the Apple M1 - which can match Zen 3 in single core) and other firms also working on their own in house ARM based cpu designs for servers (Microsoft, Google etc) Intel does have some issues to deal with long term. Heck the M1 can even emulate x86-64 instructions faster than most Intel low power parts can run native.
Hmm not really, there is nothing special about the M1 other then it's done on TSMC's latest 5nm process. Intel's CPU's are done on a 10nm process with AMD's Ryzen using TSMC's 7nm. A transistor in the M1 would be ~25% the size of a transistor in any of Intel's current generation offerings, or put another way the 5nm node size can theoretically have ~400% more transistors. Now other things get in the way so it's not quite a perfect scale but that should give people an idea of the ridiculous advantage that 5nm has over 10nm.
Apple didn't design this super awesome next gen CPU, it's a typical Big:little ARM design. All Apple did was pay through the nose to be the first customers to use TSMC's newest 5nm process, something nobody else can do right now. If Intel magically fixed their process to be at 5nm, then that CPU would easily beat the M1, they haven't so their CPU's are working with a severe handicap.
The whole core count debate been going on since I joined, back then it was "you only need two cores" ect. The "core" requirement really depends on what the user is doing outside of games. Most people do some form of chat / social media / streaming while they play or even have a web browser up with maps / information and so forth. So while a game may only seem to use four cores, the use themselves could be using another 1-3 outside of the game.